add -Wpointer-arith -Wcast-qual -Wcast-align and others to compile flags, and fix const cast warnings generated by new flags

git-svn-id: svn://localhost/ardour2/branches/3.0@13124 d708f5d6-7413-0410-9779-e7cbd77b26cf

3 files changed, 4 insertions, 4 deletions

diff --git a/libs/pbd/locale_guard.cc b/libs/pbd/locale_guard.cc
index 30fdeadeba..3b8fa7132e 100644
--- a/libs/pbd/locale_guard.cc
+++ b/libs/pbd/locale_guard.cc
@@ -23,7 +23,7 @@ LocaleGuard::~LocaleGuard ()
 	setlocale (LC_NUMERIC, old);
 
         if (old) {
-                free ((char*)old);
+                free (const_cast<char*>(old));
         }
 }
 
diff --git a/libs/pbd/pbd/xml++.h b/libs/pbd/pbd/xml++.h
index 9c3782e3c2..86b05c4d91 100644
--- a/libs/pbd/pbd/xml++.h
+++ b/libs/pbd/pbd/xml++.h
@@ -98,8 +98,8 @@ public:
 	const XMLPropertyList& properties() const { return _proplist; }
 	XMLProperty*       property(const char*);
 	XMLProperty*       property(const std::string&);
-	const XMLProperty* property(const char* n)   const { return ((XMLNode*)this)->property(n); }
-	const XMLProperty* property(const std::string& n) const { return ((XMLNode*)this)->property(n); }
+        const XMLProperty* property(const char* n)   const { return const_cast<XMLNode*>(this)->property(n); }
+        const XMLProperty* property(const std::string& n) const { return const_cast<XMLNode*>(this)->property(n); }
 	
 	XMLProperty* add_property(const char* name, const std::string& value);
 	XMLProperty* add_property(const char* name, const char* value = "");
diff --git a/libs/pbd/xml++.cc b/libs/pbd/xml++.cc
index 3046f971ab..6554bed9ee 100644
--- a/libs/pbd/xml++.cc
+++ b/libs/pbd/xml++.cc
@@ -131,7 +131,7 @@ XMLTree::read_buffer(const string& buffer)
 	delete _root;
 	_root = 0;
 
-	doc = xmlParseMemory((char*)buffer.c_str(), buffer.length());
+	doc = xmlParseMemory(const_cast<char*>(buffer.c_str()), buffer.length());
 	if (!doc) {
 		return false;
 	}